<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="分类主键" prop="categoryId">
        <el-input
          v-model="queryParams.categoryId"
          placeholder="请输入分类主键"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="上架状态" prop="publishStatus">
        <el-select v-model="queryParams.publishStatus" placeholder="请选择上架状态" clearable>
          <el-option
            v-for="dict in dict.type.publish_status"
            :key="dict.value"
            :label="dict.label"
            :value="dict.value"
          />
        </el-select>
      </el-form-item>
      <el-form-item label="排序" prop="sort">
        <el-input
          v-model="queryParams.sort"
          placeholder="请输入排序"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['supermarket:selectedCategory:add']"
        >新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['supermarket:selectedCategory:edit']"
        >修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['supermarket:selectedCategory:remove']"
        >删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['supermarket:selectedCategory:export']"
        >导出</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="selectedCategoryList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="主键" align="center" prop="selectedCategory.id" />
      <el-table-column label="分类主键" align="center" prop="selectedCategory.categoryId" />
      <el-table-column label="名称" align="center" prop="category.name" />
      <el-table-column label="图片" align="center" prop="category.pic" width="100">
        <template slot-scope="scope">
          <image-preview :src="scope.row.category.pic" :width="50" :height="50"/>
        </template>
      </el-table-column>
      <el-table-column label="上架状态" align="center" prop="selectedCategory.publishStatus">
        <template slot-scope="scope">
          <dict-tag :options="dict.type.publish_status" :value="scope.row.selectedCategory.publishStatus"/>
        </template>
      </el-table-column>
      <el-table-column label="排序" align="center" prop="selectedCategory.sort" />
      <el-table-column label="操作" align="center"  width="160" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['supermarket:selectedCategory:edit']"
          >修改</el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-view"
            @click="handlePublish(scope.row)"
            v-hasPermi="['supermarket:selectedCategory:publish']"
          >上下架</el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['supermarket:selectedCategory:remove']"
          >删除</el-button>
        </template>
      </el-table-column>
    </el-table>
    
    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改精选分类对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="分类主键" prop="categoryId">
          <treeselect v-model="form.categoryId" :options="categoryOptions" :normalizer="normalizer" :disable-branch-nodes="true" placeholder="请选择父主键" />
        </el-form-item>
        <el-form-item label="排序" prop="sort">
          <el-input v-model="form.sort" placeholder="请输入排序" />
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { listSelectedCategory, getSelectedCategory, delSelectedCategory, addSelectedCategory, updateSelectedCategory, publishSelectedCategory} from "@/api/supermarket/selectedCategory";
import { listCategory } from "@/api/supermarket/category";

import Treeselect from "@riophae/vue-treeselect";
import "@riophae/vue-treeselect/dist/vue-treeselect.css";

export default {
  name: "SelectedCategory",
  components: {
    Treeselect
  },
  dicts: ['publish_status'],
  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 精选分类表格数据
      selectedCategoryList: [],
      // 分类树选项
      categoryOptions: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        categoryId: null,
        publishStatus: null,
        sort: null
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
      }
    };
  },
  created() {
    this.getList();
  },
  methods: {
    /** 查询精选分类列表 */
    getList() {
      this.loading = true;
      listSelectedCategory(this.queryParams).then(response => {
        this.selectedCategoryList = response.rows;
        this.total = response.total;
        this.loading = false;
      });
    },
    /** 查询分类下拉树结构 */
    getTreeselect() {
      listCategory().then(response => {
        this.categoryOptions = [];
        const data = { id: 0, name: '顶级节点', children: [] };
        data.children = this.handleTree(response.data, "id", "pId");
        this.categoryOptions.push(data);
      });
    },
    /** 转换分类数据结构 */
    normalizer(node) {
      if (node.children && !node.children.length) {
        delete node.children;
      }
      return {
        id: node.id,
        label: node.name,
        children: node.children
      };
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        id: null,
        categoryId: null,
        publishStatus: null,
        sort: null
      };
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.id)
      this.single = selection.length!==1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.getTreeselect();
      this.open = true;
      this.title = "添加精选分类";
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      this.getTreeselect();
      const id = row.selectedCategory.id || this.ids;
      getSelectedCategory(id).then(response => {
        this.form = response.data;
        this.open = true;
        this.title = "修改精选分类";
      });
    },
    /** 上下架按钮操作 */
    handlePublish(row) {
      const msg = (row.selectedCategory.publishStatus == 0) ? "上架" : "下架";
      
      this.$modal.confirm('是否确认 '+msg+row.category.name+' 精选分类', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(function() {

        let publishData = {
          id : row.selectedCategory.id,
          publishStatus:  (row.selectedCategory.publishStatus == 0) ? "1" : "0"
        }
        publishSelectedCategory(publishData).then(response => {}); 

      }).then(response => {
          this.getList();
          this.$modal.msgSuccess(msg+"成功");
        }).catch(() => {});

    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.id != null) {
            updateSelectedCategory(this.form).then(response => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            addSelectedCategory(this.form).then(response => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const ids = row.selectedCategory.id || this.ids;
      this.$modal.confirm('是否确认删除精选分类编号为"' + ids + '"的数据项？').then(function() {
        return delSelectedCategory(ids);
      }).then(() => {
        this.getList();
        this.$modal.msgSuccess("删除成功");
      }).catch(() => {});
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('supermarket/selectedCategory/export', {
        ...this.queryParams
      }, `selectedCategory_${new Date().getTime()}.xlsx`)
    }
  }
};
</script>
